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27763 (1991 RN22)
Classification: Main-belt Asteroid          SPK-ID: 2027763
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2083154701683139 6.1367e-08  
a 2.259295948017592 1.6845e-08 AU
q 1.788649650356941 1.4415e-07 AU
i 4.958559818435376 7.2262e-06 deg
node 10.92127746538432 7.139e-05 deg
peri 291.4496159921563 7.3939e-05 deg
M 275.8488709424047 2.2928e-05 deg
tp 2457090.444956364425
(2015-Mar-08.94495636)
8.1123e-05 JED
period 1240.389587877692
3.40
1.3873e-05
3.798e-08
d
yr
n .2902313946507406 3.2459e-09 deg/d
Q 2.729942245678243 2.0354e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      513  
   data-arc span      8318 days (22.77 yr)  
   first obs. used      1991-09-15  
   last obs. used      2014-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .62126  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:57:42  

Additional Information
 Earth MOID = .780059 AU 
 T_jup = 3.587 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4 mag n/a MPO250478  

27763 (1991 RN22)          Discovered 1991-Sep-15 by Holt, H. E. at Palomar (675)
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RN22 = 1998 UL31 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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